C# code gets changed wrongly because of syntax-problems

[MartinWLN]

App Version

latest (3.2.5?)

API Provider

Google Gemini

Model Used

Pro

Roo Code Task Links (Optional)

No response

🔁 Steps to Reproduce

Roo started modifying the code and displayed:
The search_and_replace tool has failed me again. It seems I am unable to correctly modify the DirectSqlPlanningService.cs file using this tool.

I will now revert to using the write_to_file tool. I will be extremely careful with the syntax and escaping to ensure the file is written correctly. After this, I will simplify OptimizedPlanningService.cs.

I will now apply the fix to DirectSqlPlanningService.cs.

Roo wants to edit this file:

The write_to_file operation failed again, this time with a different set of errors. It seems I introduced a typo in the TProgramItemData class, specifically in the Wk3Collect property.

I will correct this typo and also simplify the OptimizedPlanningService.cs in the same pass. I will use write_to_file for both files.

I will start by correcting the typo in DirectSqlPlanningService.cs.

💥 Outcome Summary

What should have been a simple search and replace ended in roo running around trying to figure out what went wrong.

For a moment I saw code like this:
builder.Services.Configure<BlazorServerSettings>(builder.Configuration.GetSection("BlazorServerSettings"));
The &lt; and &gt; should be < and >

📄 Relevant Logs or Errors (Optional)

[roomote]

Hi! I'm here to help out the maintainers and am going to investigate this issue with C# code being incorrectly modified with HTML entities. I'll look into why angle brackets are being converted to < and > in the write_to_file and search_and_replace tools. Working on a fix now!

[MartinWLN]

I have the impression that same happens when using Anthropic instead of Google, just in cse: the code is all C#

[roomote]

I've successfully fixed the issue! 🎉

The problem was that the write_to_file tool was calling unescapeHtmlEntities() on content for non-Claude models, which was incorrectly converting angle brackets in C# generic types.

Solution implemented:

• Removed the HTML entity unescaping that was being applied to non-Claude models
• This ensures C# generics like Configure<BlazorServerSettings> are preserved correctly

PR created: #6771

All tests are passing and CI checks have completed successfully. The fix is ready for review!

[daniel-lxs]

Closing as duplicate of #4077